* Use XML parser based on encoding/xml
* Implement raw XML parser
* Speed-up xml parser
* Add line number to XML parser syntax errors
* Add svgparser.StartElement.SelfClosing
* Utilize bufio.Reader.ReadSlice in XML parser
* Polish XML parser tests; Add XML parser benchmark
* Move XML parser to ./xmlparser
* Use all XML parser tokens as pointers
* Add xmlparser.Document.ReplaceEntities method
* Combine xmlparser.Text and xmlparset.CData
* Optimize entities replacement in xmlparser
* xmlparser.parseEntityMap: ignore comments
* xmlparser: add document parsing benchmark
* xmlparser: Refactor attributes
* xmlparser: simplify Attributes.Filter
* xmlparser: add Attributes.Has, Node.FilterChildren, and Node.FilterChildNodes
* xmlparser: add Node.ChildNodes
